Ore-separator



(NoModel.)

T. M. ROGERS.

Ore"""Separator.

, NO- 236,180- Patented Jan. 4,1881.

' el STATES lArnNr trice.

ORE-SEPARATO R.

SPECIFICATION forming part of Letters Patent No. 236,180, dated vJanuary 4, 1881.

Application filed May 31, 1880. (No model.)

To all whom it may concern:

Be it known that I, T. MELLoN Roenes, of the city and county of Philadelphia, and State of Pennsylvania, have invented anew and useful Jigging-Machine for Separating Ores, of which the follcwin g is a specication.

The object of my invention is an improvement in jiggers for the separation of ores from their impurities, &c., based on the difference of their specific gravities. In connection with the tank employed, l use a perforated, grated, of sieve-bottom box and an agitating-gate, by which waterl is forced through the perforations of thebox,`and thus separates the heavier and lighter parts.

Figure l is a side perspective elevation, in which part of the framing is removed for the purpose of making the application of the improvement more obvious. Fig. 2 is a plan view. Fig. 3 is a side elevation, sectioned, of the agitating-gate apart from the jig, to show more clearly the nature and construction of the same.

tion of an eccentric for changing the throw of the agitator.

' Similar letters refer to similar parts throughout the several views.

A is the tank or box of the jigger, which is divided by the partition B into the agitating and refuse chambers O D. A water-reservoir, E, is formed from the latter by a swinging partition and agitator,A F, which moves watertight against the edges and curved bottom of the partition B. This agitator has one or more valves, Gr, for admitting to the tank or chamber C the water which is supplied by the pipe H.

I is a screen,perforated or sieve-bottom box, and ore-holder at the top of the chamber C. In this instance itis shown in connection with leveling adjusting-screws J, though it maybe either fixed or movable.

In front of the tank is a bed or frame-work, K, across which is placed a shaft, L, having upon it an eccentric, M, and a pulley or gear wheel, N, in line with a similar pulleyor wheel, O, on a parallel shaft, P, which has the fast and loose pulleys Q Q on its other end, so that the transmitting-beltR may be shifted at pleasure from one pulley to the other, and thereby put the shafts L P in or out of motion. A rod, S, of the eccentric M passes into the tank and connects with the agitating-gate F.

Fig. 4 is a sectioned eleva- Lumps of ore too large to pass the grated bottom are placed in the box I, and other pieces small enough to drop through the meshes are filled in to a suitable depth. After water has been turned on the pipe H and power applied to the pulley Q, the movement of rotation which is produced in the shaft P is communicated, by the pulley or gear N, to the eccentric M, which operates the rod S and imparts a reciprocating motion to the gate or agitator F, every vibration of which agitates and lifts the Water of the chamber C through the sieve-bottom box I and gives a shaking motion to the ore, by which its gan gues, sands, and impurities are washed over into the chamber D, to be drawn off through a spout, T. During the agitation the smaller and heavier particles of the ore drop through the meshes of the grate or sieve a into the chamber C, from which they can be washed out through the bottom opening U.

The supply of Water in the chamber C is kept up by the valves Gin the gate F, the movement of which in the direction of the orebox I increases the water-space of the chamber E, and pressing, during its return motion, against the augmented bulk of water, forces the valves G open and drives the water into the chamber G. The return vibration permits the sprin gs b to close the valves firmly against their seats.

The degree of water agitation in the chamber C for washing the ore contained in the box I is regulated by the extent of vibration ofthe gate F. To that end, therefore, the throw of the eccentric M is made adjustable, in this instance, as follows: Slots c are formed in it, through which pass the shaft L and the holding-bolts d, for attachingto a collar or swell, e, of the same shaft. When the bolts are loosened the center of the eccentric can be adjusted to or from the center of the shaft, and the throw changed in proportion to the degree of agitation required to be effected by the gate. I do not confine myself to this eccentric as shown and described, but cla-im, broadly, an adjustable eccentric.

I claim as my invention and desire to secure by Letters Patent- 1. In an ore-jigger, the combination, `with the gate F, provided with valvesG and adjustable device for vibrating said gate and varying IOO the extent of its vibrations, ot the verticallyinstable device for vibrating the same, sub- 1o adjustable ore-box having a `a'rated or pert'ostantially as described.

rated bottom, whereby the force ot the Water In testimony whereof I hereunto sign my and the continuance ot'its contact with the ore name in presence of two subscribing witnesses. may be regulated, essentially as set forth.

f l 2. The box A, haring the curved partition E MELLON ROGERS' B, in combination wit-l1 the verticalLY-adjnsta- Vitnesses: ble ore-box having a grated or perforated bot- FRANCIS D. PASTORIUS,

tom, and the gate F, having valves Gand ad- J. J. BUCHEY. 

